m-dPEG<SUP>®</SUP><SUB>8</SUB>-MAL CAS 1334169-90-2
| CAS No. | 1334169-90-2 |
| Molecular Formula | C24H42N2O11 |
| Molecular Weight | 534.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
m-dPEG<SUP>®</SUP><SUB>8</SUB>-MAL (CAS 1334169-90-2) is a high-purity analytical reference standard with the molecular formula C24H42N2O11 and a molecular weight of 534.60 g/mol.
The molecular framework of m-dPEG<SUP>®</SUP><SUB>8</SUB>-MAL (C24H42N2O11) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), m-dPEG<SUP>®</SUP><SUB>8</SUB>-MAL meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H42N2O11 |
| Molecular Weight | 534.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related m Standards
- Mal-dPEG(4)-NHNH-Boc (CAS 1127247-28-2)
- m-dPEG<SUP>®</SUP><SUB>8</SUB>-Lipoamide (CAS 1334172-67-6)
- dPEG<SUP>®</SUP><SUB>8</SUB>-SATA (S-acetyl-dPEG<SUP>®</SUP><SUB>8</SUB>-NHS ester) (CAS 1070798-99-0)
- Bis-dPEG<SUP>®</SUP><SUB>5</SUB>-PFP ester (CAS 1334177-78-4)
- MAL-dPEG-t-boc-hydrazide (CAS 1334169-98-0)
- m-dPEG<SUP>®</SUP><SUB>4</SUB>-MAL (CAS 1263044-81-0)
- m-dPEG<SUP>®</SUP><SUB>12</SUB>-Lipoamide (CAS 1334172-68-7)
- dPEG<SUP>®</SUP><SUB>12</SUB>-SATA (S-acetyl-dPEG<SUP>®</SUP><SUB>12</SUB>-NHS ester) (CAS 1334169-95-7)
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